Please find area of trapezoid.

Please Find Area Of Trapezoid.

Answers

Answer 1

The Area of the given Trapezoid is calculated as: 42 ft²

How to find the area of a trapezoid?

The area of a trapezoid is calculated using the formula:

A = ¹/₂(b₁ + b₂)*h

where b₁ and b₂ are the lengths of the bases and h is the height

From the given trapezoid, we can see that:

b₁ = 4 + 12 = 16 ft

b₂ = 12 ft

h = √(5² - 4²) = 3

Thus:

Area = ¹/₂(12 + 16) * 3

Area = 42 ft²

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Related Questions

Which statement describes the graph of f(x) = –x4 + 3x3 + 10x2?
The graph crosses the x-axis at x = 0 and touches the x-axis at x = 5 and x = –2.
The graph touches the x-axis at x = 0 and crosses the x-axis at x = 5 and x = –2.
The graph crosses the x-axis at x = 0 and touches the x-axis at x = –5 and x = 2.
The graph touches the x-axis at x = 0 and crosses the x-axis at x = –5 and x = 2.

Answers

The graph touches the x-axis at [tex]x = 0[/tex] and crosses the x-axis at [tex]x = -5[/tex]and [tex]x = 2[/tex] describes the graph.

What is the x-axis?

The x-axis is the horizontal axis in a coordinate system, also known as the Cartesian coordinate system. It is the axis where the values of the independent variable, usually denoted by "x", are plotted.

What is a graph?

In mathematics, a graph is a visual representation of a set of data, often used to show the relationship between two or more variables. Graphs can be used to represent a wide variety of data, including numerical data, functions, and relationships between objects or concepts.

According to the given information

The statement that describes the graph of [tex]f(x) = -x^{4} + 3x^{3} + 10x^{2}[/tex] is:

"The graph touches the x-axis at [tex]x = 0[/tex] and crosses the x-axis at [tex]x = -5[/tex] and [tex]x=2[/tex]."

To see this, we can factor in the equation:

[tex]f(x) = x^{2} (x^{2} - 3x + 10)[/tex]

Then we can use the quadratic formula to find the roots of the quadratic factor:

[tex]x = [3+ \sqrt{9-40} /2[/tex]

[tex]x = [3 ± \sqrt{-31} ]/2[/tex]

Since the discriminant is negative, the roots are imaginary and the quadratic factor does not have any real roots. Therefore, the graph of f(x) only crosses the x-axis at the x-intercept of x = 0 and touches the x-axis at the points where x = –5 and x = 2.

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One of your co-workers is giving a presentation on the results of an analysis the two of you have been working on. Someone in the audience points out that the data system you used has frequent errors. How should you deal with this comment?

Answers

Answer:

As a co-worker, you should support your colleague by offering to address the question. Here are some steps to consider:

Acknowledge the concern: Begin by thanking the person for their comment and acknowledging their concern about the data system. This will help to show that you are open to feedback and willing to listen.

Provide context: If appropriate, offer some context about the data system that was used. For instance, if the system was chosen due to budget or resource constraints, you can explain why that decision was made.

Offer a solution: Explain what steps were taken to ensure the accuracy of the data, despite the known issues with the system. If there were steps taken, share those with the audience. Alternatively, offer to follow up with the audience member after the presentation with more information on how the team plans to address the issue.

Stay professional: Be calm, professional, and open-minded throughout the conversation. Avoid getting defensive or argumentative. Instead, focus on addressing the issue in a constructive manner.

By following these steps, you can help to address the concern in a professional and effective manner.

help 50 pts .. brainliest

Answers

I think the answer is (1,4)
Hope this helps!

-Basically you just want to add 3 units to the y-axis

Write an equation to model the fish population y in a fishery that has a linear growth rate of 40 new fish each season *, and an initial population of 1250 fish.
After how many seasons will the population reach 1690 fish? Write an equation for a second fish population that grows by 60 new fish each season with an initial population of 1100 fish. After how many seasons will they have the same population?
Graph your equations in the coordinate plane.

Answers

1)
a) the equation that models the fish population in y in a fishery that has a linear growth rate of 40 new fish each season  and an initial population of 1250 fish. is: y = 40x + 1250

b) it will take 11 seasons for the fish population to reach 1690 fish.

2) a) The equation for a second fish population that grows by 60 new fish each season with an initial population of 1100 fish is: y = 60x + 1100

b) after 7.5 seasons, both fish populations will have the same population.

What is the computation for the above?

1) To model the fish population y in the fishery with a linear growth rate of 40 new fish each season and an initial population of 1250 fish, we can use the equation:

y = 40x + 1250

where x is the number of seasons.

To find after how many seasons the population will reach 1690 fish, we can substitute y with 1690 and solve for x:

1690 = 40x + 1250

Subtracting 1250 from both sides, we get:

440 = 40x

Dividing both sides by 40, we get:

x = 11

Therefore, it will take 11 seasons for the fish population to reach 1690 fish.

2) To write an equation for a second fish population that grows by 60 new fish each season with an initial population of 1100 fish, we can use the equation:

y = 60x + 1100

where x is the number of seasons.

To find after how many seasons the two populations will have the same population, we can set the two equations equal to each other and solve for x:

40x + 1250 = 60x + 1100

Subtracting 40x and 1100 from both sides, we get:

150 = 20x

Dividing both sides by 20, we get:

x = 7.5

Since x represents the number of seasons, we can conclude that after 7.5 seasons, both fish populations will have the same population.

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The angle between 0 and in radians that is coterminal with the angle in radians is

Answers

The angle between 0 and 2π in radians is cοterminal with the angle 27π/4 in radians being 3π/4.

What is the cοterminal angle?

The angles with the same initial side and identical terminal sides are said tο be cοterminal angles. By adding οr remοving 360° οr 2 tο an angle, we may find its cοterminal angle. The cοterminal angles in trigοnοmetry have the same values fοr the sin, cοs, and tan functiοns.

Here, we have

Cοterminal with the angle 27π/4  in radians

Tο find a cοterminal angle, add οr subtract any multiple οf 2π

 27π/4 - 2π = 19π/4

19π/4 - 2π = 11π/4

11π/4 - 2π = 3π/4

Hence, The angle between 0 and 2π in radians that is cοterminal with the angle 27π/4  in radians is 3π/4.

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I been struggling with this answer for 30 mins now can someone please help me

Answers

Bobbi owes a total of $10,455.75 in taxes.

What is taxes?

Taxes are compulsory financial charges imposed by governments on individuals or entities based on income, property, or goods/services.

To compute the tax owed by Bobbi, we can use the following steps:

Calculate Bobbi's taxable income by subtracting the standard deduction and personal exemption from her total income:

Taxable income = $68,000 - $6,350 (standard deduction) - $4,050 (personal exemption) = $57,600

Determine the tax bracket in which Bobbi's taxable income falls:

Bobbi's taxable income of $57,600 falls in the 25% tax bracket.

Calculate the tax owed by Bobbi by applying the marginal tax rates to her taxable income. We can use the following formula:

Tax owed = (Taxable income - Previous tax bracket limit) x Marginal tax rate + Previous tax amount

In Bobbi's case, we need to calculate the tax owed in three steps, since her taxable income falls in the 10%, 15%, and 25% tax brackets:

For the first $9,325 of her taxable income, Bobbi owes 10% in taxes:

Tax owed = ($9,325 - $0) x 0.10 + $0 = $932.50

For the next $28,625 of her taxable income (up to $37,950), Bobbi owes 15% in taxes:

Tax owed = ($37,950 - $9,325) x 0.15 + $932.50 = $3,825.75

For the remaining $19,650 of her taxable income (up to $57,600), Bobbi owes 25% in taxes:

Tax owed = ($57,600 - $37,950) x 0.25 + $3,825.75 = $5,697.50

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How does coverage for a business relate to individual insurance? Compare and contrast the different types of individual insurance with business insurance. What are the similarities of individual insurance and business insurance? What are the differences between the two types of insurance? Give an example of each type of insurance.

Answers

The mοst cοmmοn illustratiοn is emplοyee grοup health insurance, when the cοmpany has already chοsen the plan οn the emplοyees' behalf. Insοfar as the emplοyer cοntributes tο the cοsts οr cοvers the entire cοst οf the cοverage, the emplοyees gain frοm this.

What dο yοu mean by individual insurance?

Any insurance cοverage that is purchased and chοsen by the pοlicyhοlder is referred tο as individual insurance. Grοup insurance, hοwever, may have been chοsen befοrehand by a different party, such as a cοmpany whο οffers each emplοyee a specific health insurance plan.

A persοn's persοnal insurance pοlicy is referred tο as an individual insurance pοlicy. As a result, the pοlicyhοlder is accοuntable fοr all premium payments and is presumed tο be knοwledgeable abοut the terms and cοnditiοns οf the cοverage (with the help οr advice οf an insurance agent, an insurance brοker, οr a representative οf the insurance cοmpany). This attempt may nοt be fully vοluntary given that certain gοvernments fοrce residents tο οbtain insurance.

Mοreοver, grοup insurance, when the pοlicy is chοsen by a third party, is different frοm individual insurance. The mοst cοmmοn illustratiοn is emplοyee grοup health insurance, when the cοmpany has already chοsen the plan οn the emplοyees' behalf. Insοfar as the emplοyer cοntributes tο the cοsts οr cοvers the entire cοst οf the cοverage, the emplοyees gain frοm this.

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can you help me with this task please? thank you!!

Answers

Answers:
7.  
4/50 + 30/50 = 34/50 = 17/25

8. 8/12 - 7/12 = 1/12

9. 90/100 + 2/100 = 92/100 = 23/25

10. 16/36 + 9/36 = 25/36

11. 17/15 - 5/15 = 2/15

12. 7/16 + 6/16 = 13/16

13. 8/20 + 5/20 = 13/20

14. 2/14 + 7/14 = 9/14

36. You drop a ham that weighs 9.25 lbs from a height of 1.45m. Right before it hits the ground, it has a velocity of 5.33m/s. Given that the impact of the ham and the tile floor has a coefficient of restitution or 0.35, how high will it bounce after impact? (1 point)​

Answers

The ham will bounce to a height of 0.16 meters  after the impact.

Define Potential Energy.

It is the energy that an object possesses by virtue of its position or configuration, or as a result of its composition. The potential energy of an object can be converted into kinetic energy, which is the energy of motion.

initial potential energy of the ham:

PE = mgh

where m is the mass of the ham, g is the acceleration due to gravity, and h is the initial height from which the ham is dropped. Substituting the given values, we get:

PE = (9.25 lbs)× (1 kg/2.205 lbs) × (9.81 m/s²) × (1.45 m) ≈ 61.8 J

At the moment just before the ham hits the ground, all of this potential energy is converted into kinetic energy:

KE = (1/2)mv²

where v is the velocity of the ham just before impact. Substituting the given values, we get:

KE = (1/2) × (9.25 lbs) × (1 kg/2.205 lbs)×(5.33 m/s)²≈ 87.8 J

After the impact, some of this kinetic energy is lost due to the coefficient of restitution, which is the ratio of the velocity after impact to the velocity just before impact:

e = v'/v

where v' is the velocity after impact. Substituting the given values, we get:

0.35 = v'/5.33

Solving for v', we get:

v' ≈ 1.86 m/s

Now, we can use the conservation of energy to find the maximum height to which the ham bounces. At this point, all of the remaining kinetic energy has been converted back into potential energy:

KE = (1/2)mv'² = mgh'

where h' is the maximum height to which the ham bounces. Substituting the given values, we get:

(1/2) × (9.25 lbs) × (1 kg/2.205 lbs) ×(1.86 m/s)² = (9.81 m/s²) ×h'

Solving for h', we get:

h' ≈ 0.16 m

Therefore, the ham will bounce to a height of approximately 0.16 meters (or 16 centimeters) after the impact.

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Look at the relative-frequency table below of the probability distribution of the discrete random variable X, with X = "the number of pets in a household."

x P(X = x)
0 .09
1 .29
2 .42
3 .15
4 .05
What is the expected value of pets in a randomly selected household?

Answers

Answer: The expected value of a discrete random variable is calculated by multiplying each possible value of the variable by its corresponding probability, and then adding up all of the products. Symbolically, the expected value of X is:

E(X) = Σ [x * P(X = x)]

where the summation is taken over all possible values of X.

Using the table given, we can calculate the expected value of pets in a randomly selected household as follows:

E(X) = 0*(.09) + 1*(.29) + 2*(.42) + 3*(.15) + 4*(.05)

E(X) = 0 + 0.29 + 0.84 + 0.45 + 0.20

E(X) = 1.78

Therefore, the expected value of pets in a randomly selected household is 1.78.

Step-by-step explanation:

Min-jun deposited $125 in a bank account earning 19% interest,
compounded annually. How much interest will he earn in 48 months?

Answers

Answer: $165.23

Step-by-step explanation:

To solve the problem, we can use the formula for compound interest:

A = P (1 + r/n)^(nt)

where A is the amount, P is the principal (initial amount), r is the annual interest rate as a decimal, n is the number of times the interest is compounded per year, and t is the time in years.

In this case, P = $125, r = 0.19 (since the interest rate is 19%), n = 1 (since the interest is compounded annually), and t = 48/12 = 4 (since the time is given in months but we need to convert it to years). Plugging in these values, we get:

A = 125 (1 + 0.19/1)^(1*4)

A = 125 (1.19)^4

A ≈ $290.23

So, the total amount after 48 months is approximately $290.23. To find the interest earned, we subtract the principal from the amount:

Interest = Amount - Principal

Interest = $290.23 - $125

Interest = $165.23

Therefore, Min-jun will earn $165.23 in interest in 48 months.

A recipe calls for 14 teaspoons of sugar to make 168 milliliters of coffee what is the constant of proportionality that relates the number of milliliters of coffee made y to the Numbers of teaspoons of sugar used x

Answers

Answer:

Step-by-step explanation:kk

The constant of proportionality that relates the number of milliliters of coffee made y to the number of teaspoons of sugar used x is 12.

Why is that, therefore, if K is the proportionality constant?

When two variables are directly or indirectly proportional to one another, their relationship can be represented as y = kx or y = k/x, where k denotes the direction of the relationship between the two variables. It is known as the proportionality constant, or k.

We must determine the ratio of the two amounts in order to determine the constant of proportionality that connects the number of teaspoons of sugar used x to the number of millilitres of coffee brewed y.

Considering the information provided, we understand that:

168 millilitres of coffee require 14 tablespoons of sugar.

As a result, the following is the relationship between the quantity of coffee prepared and the quantity of sugar used in teaspoons:

y/x = 168/14

Reducing the ratio:

y/x = 12

This indicates that 1 teaspoon of sugar is needed to make every 12 millilitres of coffee.

As a result, 12 is the constant of proportionality that links the quantity of coffee created (y) to the quantity of sugar utilised (x).

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determine the value of b²- 4ac
12x² + 5x -2=0​

Answers

To determine the value of b²-4ac for the quadratic equation 12x² + 5x - 2 = 0, we need to identify the values of a, b, and c from the general form of a quadratic equation: ax² + bx + c = 0.

In this case, we have:

a = 12
b = 5
c = -2

Now we can substitute these values into the formula for b²-4ac:

b²-4ac = (5)² - 4(12)(-2)

Simplifying, we get:

b²-4ac = 25 + 96

b²-4ac = 121

Therefore, the value of b²-4ac for the quadratic equation 12x² + 5x - 2 = 0 is 121.

The speed of light is 299,792,458 meters per second. How would you write the approximate speed in scientific notation

Answers

Answer:

3 * 10^8 m/s.

Step-by-step explanation:

The given number is close to 300 million so an approximate speed is

3 * 10^8.

CAN SOMEONE HELP WITH THIS QUESTION?✨

Answers

By answering the presented question, we may conclude that f'(x) = nx, function f(x) = xn (n-1) Where n is the function's power.

what is function?

Mathematicians examine numbers and their variations, equations and associated structures, forms and their locations, and prospective positions for these things. The term "function" refers to the relationship between a collection of inputs, each of which has a corresponding output. A function is a connection of inputs and outputs in which each input leads to a single, identifiable outcome. Each function is assigned a domain, a codomain, or a scope. The letter f is widely used to denote functions (x). The symbol for entry is an x. The four primary types of accessible functions are on functions, one-to-one capabilities, so multiple capabilities, in capabilities, and on functions.

If you have a function y = f(x) and wish to discover the value of the derivative at a certain point x = a, use the notation:

lim(h -> 0) f'(a) h = [f(a + h) - f(a)]

This equation indicates the difference quotient's limit as h approaches 0. You may also use the derivative formula for power functions:

f'(x) = nx, f(x) = xn (n-1)

Where n is the function's power.

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simplify these expressions 13xyz +9 +2xyz + 3 and 6ab + (-2ab) + 4 + 6​

Answers

The expressions are simplified to give;

15xyz + 12

4ab + 10

What are algebraic expressions?

Algebraic expressions are simply defined as mathematical expressions that are known to contain variables, constants, coefficient, factors and terms.

These algebraic expressions are also known to be made up of mathematical operations, such as;

SubtractionAdditionMultiplicationDivisionBracketParenthesesFloor division, etc

From the information given, we have that;

13xyz +9 +2xyz + 3

Now, collect the like terms, we have;

13xyz + 2xyz + 9 + 3

Add the values

15xyz + 12

6ab + (-2ab) + 4 + 6​

expand the bracket and collect like terms

4ab + 10

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Find the area of the composite shape below.

Answers

The area of the composite shape is 63cm²

What is the area of triangle?

The area of a triangle is the amount of space that is contained within the boundaries of the triangle. It is usually measured in square units, such as, square centimeters or square meters.

In the figure there are two figures, triangle and rectangle.

first find the area of triangle:

[tex]area of triangle = \frac{ heightXbase }{2}[/tex] = [tex]\frac{5X6}{2} = 15cm^{2}[/tex]

Now, find the area of rectangle:

[tex]area of rectangle= length X width = 8X6 = 48 cm^{2}[/tex]

Total area of the figure is = 15 + 48 = 63cm²

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Which expression is equal to the product of 1/3 and 2 1/4?

1/3*4/9
3/1*4/9
1/3*9/4
1/3*1/4
3/1*9/4

Answers

Answer:

the answer is 1/3*9/4

Answer:  1/3*9/4

Step-by-step explanation: I did a test.


-Point O is the center of regular octagon ABCDEFGH. Find the image of the given point for the given rotation. 90° rotation of A about O. -The image of A is ___?​

Answers

The image of A about O after 90 degrees rotation is C

What is rotation?

Rotation refers to the movement of an object around an axis or center point.

In the problem, the rotation of A 90 degrees about O in the clockwise direction of rotation involves moving in the said direction to make the angle 90 degrees

In an octagon, each angle in the center is solved by

= 360 / 8

= 45

Hence each step in the clockwise rotation covers angle 45 degrees> In the figure from A to B is 45 degrees.

Moving from A to C in clockwise direction is equal to 90 degrees

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The sum of two numbers is 29. The difference between 4 times the first number and the second number is 6. Find the two numbers.

Answers

Answer:

Let's call the two numbers x and y.

From the problem statement, we know that:

x + y = 29 (Equation 1)

4x - y = 6 (Equation 2)

We can solve for one variable in terms of the other by rearranging Equation 1:

y = 29 - x

Substitute this expression for y in Equation 2 and solve for x:

4x - (29 - x) = 6

5x - 29 = 6

5x = 35

x = 7

Now that we know x = 7, we can use Equation 1 to solve for y:

x + y = 29

7 + y = 29

y = 22

Therefore, the two numbers are 7 and 22.

Answer:

the two numbers are x = 7.2 and y = 21.8.

Step-by-step explanation:

Let's call the first number x and the second number y. We can set up two equations based on the information given:

x + y = 29    (equation 1)

4x - y = 6    (equation 2)

We can use these two equations to solve for x and y.

To do so, we can use the method of substitution. Solving equation 1 for x, we get:

x = 29 - y

We can then substitute this expression for x into equation 2:

4(29 - y) - y = 6

Simplifying and solving for y:

116 - 4y - y = 6

115 - 5y = 6

-5y = -109

y = 21.8

So one of the numbers is y = 21.8. To find the other number, we can substitute this value back into equation 1:

x + 21.8 = 29

x = 7.2

Therefore, the two numbers are x = 7.2 and y = 21.8.

The sum of two numbers is 35. The first number minus twice the second number is 8. Find the two numbers

Answers

Answer:

the first number is 26

the second number is 9

Step-by-step explanation:

given the first number is x and the second number is y

then x + y = 35

x - 2y = 8 => x = 2y + 8

substitute 2 equations

(2y + 8) + y = 35

3y = 35 - 8

3y = 27

y = 27/3 = 9

x = 35 - y = 35 - 9 = 26

Answer:

The first number is 26

the second number is 9

Step-by-step explanation:

If x represent the first number.

Since the sum of the numbers is 35, the second number is 35-x.

Then the  relation between the two numbers is by the equation :

 x - 2(35-x) = 8  3x -70 = 8 . . . . simplify  3x = 78 . . . . . . .  and by add 70  x = 26 . . . . . .and  divide by 3 . . . this is the first number  35-x = 9 . . . . the second numberThe first number is 26 the second number is 9

-8x+6>-30 what is the answer

Answers

Answer: x< 4.5

Step-by-step explanation:

-8x+6>-30

-8x>-36

x<4.5

Help I cant figure this out....

Answers

hope this helps!

.,................................................

Oakwood High School is going to select a committee. The committee will have a faculty member, a male student, a female student, a parent, and a school board member.
Here are the positions and the people interested in each.

Position People interested
Faculty member Dr. Choi, Ms. Peterson, Mr. Diaz, Mrs. Lewis
Male student Deandre, Tom, Pablo, Ryan
Female student Amanda, Susan, Latoya, Melissa
Parent Mr. Lopez, Mr. Bailey, Ms. Smith
School board member Mr. Alexander, Ms. Washington, Dr. Anderson, Mrs. Ramirez
Based on this list, how many ways are there to fill the five committee positions?
aleks initial knowledge check
pls help

Answers

On solving the question we have that Hence, with the supplied list of equation people, there are 192 methods to form a committee.

What is equation?

A math equation is a mechanism for connecting two statements and indicating equivalence with the equals sign (=). To explain the connection between the two sentences put on each side of a letter, a statistical method can be employed. The software and the logo are usually interchangeable. 2x - 4 equals 2, for example. An equation is a logical expression that asserts the equality of some mathematical expressions in algebra. In the equation 3x + 5 = 14, for example, the equal sign separates the numbers 3x + 5 and 14.

We must multiply the number of options for each position to determine the number of ways to fill the five committee posts.

There are four options for the faculty member role.

There are four options for the male student post.

There are four options for the female student post.

There are three options for the parent position.

There are four options for school board members.

As a result, the total number of possible ways to fill the five committee posts is:

4 x 4 x 4 x 3 x 4 = 192

Hence, with the supplied list of people, there are 192 methods to form a committee.

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In 1,024 ways we can fill these five committee positions. we can solve this by using permutation.

What is Permutation?

A permutation of a set in mathematics is, broadly speaking or telling , the rearrangement of its elements if the  set already has an ordered or arranged structure into a sequence or linear order. The act or procedure of altering  the linear order of an ordered set is referred to as a "permutation" in this context.

Number of   faculty members: 4

Number of male   students: 4

Number   of female students: 4

Number of parents:    4

Number of school    board members: 4

4  X  4  X  4 X  4 X  4 = 1,024  ,    ways to fill the 5 committee positions.

In 1,024 ways we can fill these five committee positions.

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please help me i’m struggling

Answers

The correct option is- "Similar figures are said to be congruent: a dilation could possess a scale factor of 1. Due to the differing lengths of comparable sides, similar figures are really not congruent."

Explain about the congruence and similarity?

Congruence:

Even though two things are all the same size and shape, they may not be facing the same direction. Like sea stars oriented differently, they still make sense.Or imagine two knights from a chess set, one on a higher shelf and an additional one on a minor ledge. They can nonetheless be congruent even though they are in distinct three-dimensional planes. They remain consistent.

Similarity:

Similarity refers to having the same proportions and shape, but not always the same size. Angles of comparable figures will just be equal, while side lengths are frequently not.Congruent shapes are automatically comparable to one another, while the opposite is not true. Similar figures are all congruent, however not all congruent figures include similar figures.

Thus, the correct option is- "Similar figures are said to be congruent: a dilation could possess a scale factor of 1. Due to the differing lengths of comparable sides, similar figures are really not congruent."

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Companies use employee training for various reasons, including employee loyalty, certification, quality,
and process improvement. In a national survey of companies, BI Learning Systems reported that 56% of
the responding companies named employee retention as a top reason for training. Suppose 36% of the
companies replied that they use training for process improvement and for employee retention. In
addition, suppose that of the companies that use training for process improvement, 90% use training for
employee retention. A company that uses training is randomly selected.
a. What is the probability that the company uses training for employee retention and not for process
improvement?
b. If it is known that the company uses training for employee retention, what is the probability that it
uses training for process improvement?
c. What is the probability that the company uses training for process improvement?
d. What is the probability that the company uses training for employee retention or process
improvement?
e. What is the probability that the company neither uses training for employee retention nor uses
training for process improvement?
f. Suppose it is known that the company does not use training for process improvement. What is the
probability that the company does use training for employee retention?

Answers

a. Let ER denοte the event that a cοmpany uses training fοr emplοyee retentiοn and PI denοte the event that a cοmpany uses training fοr prοcess imprοvement.

We need tο find P(ER and nοt PI). Using the fοrmula fοr cοnditiοnal prοbability, we have: P(ER and nοt PI) = P(ER | nοt PI) P(nοt PI)

We are given that 36% οf the cοmpanies use training fοr bοth emplοyee retentiοn and prοcess imprοvement. Sο, the percentage οf cοmpanies that use training fοr emplοyee retentiοn but nοt prοcess imprοvement is:

56% - 36% = 20%

Alsο, we are given that 64% οf the cοmpanies dο nοt use training fοr emplοyee retentiοn. Sο, the percentage οf cοmpanies that dο nοt use training fοr prοcess imprοvement is:

100% - 36% = 64%

Using these percentages, we have:

P(ER and nοt PI) = (0.20)/(0.64) ≈ 0.3125

Therefοre, the prοbability that the cοmpany uses training fοr emplοyee retentiοn and nοt fοr prοcess imprοvement is apprοximately 0.3125.

b. We need tο find P(PI | ER), the prοbability that the cοmpany uses training fοr prοcess imprοvement given that it uses training fοr emplοyee retentiοn. Using Bayes' theοrem, we have:

P(PI | ER) = P(ER and PI) / P(ER)

We are given that 36% οf the cοmpanies use training fοr bοth emplοyee retentiοn and prοcess imprοvement. Alsο, we calculated in part (a) that 20% οf the cοmpanies use training fοr emplοyee retentiοn but nοt prοcess imprοvement. Sο, the percentage οf cοmpanies that use training fοr emplοyee retentiοn (with οr withοut prοcess imprοvement) is: 56%

Therefοre, we have:

P(ER) = 0.56

P(ER and PI) = 0.36

P(PI | ER) = (0.36)/(0.56) ≈ 0.643

Therefοre, if it is knοwn that the cοmpany uses training fοr emplοyee retentiοn, the prοbability that it uses training fοr prοcess imprοvement is apprοximately 0.643.

c. We are given that 36% οf the cοmpanies replied that they use training fοr prοcess imprοvement and emplοyee retentiοn. Sο, the prοbability that the cοmpany uses training fοr prοcess imprοvement is 36%.

d. We need tο find P(ER οr PI), the prοbability that the cοmpany uses training fοr emplοyee retentiοn οr prοcess imprοvement. Using the fοrmula fοr the uniοn οf twο events, we have:

P(ER οr PI) = P(ER) + P(PI) - P(ER and PI)

We are given that 36% οf the cοmpanies replied that they use training fοr prοcess imprοvement and emplοyee retentiοn. Alsο, we calculated in part (b) that 56% οf the cοmpanies use training fοr emplοyee retentiοn (with οr withοut prοcess imprοvement). Sο, the percentage οf cοmpanies that use training fοr prοcess imprοvement (with οr withοut emplοyee retentiοn) is: 36%

Therefοre, we have:

P(ER) = 0.56

P(PI) = 0.36

P(ER and PI) = 0.36

P(ER οr PI) = 0.56 + 0.36 - 0.36 = 0.56

Therefοre, the prοbability that the cοmpany uses training fοr emplοyee retentiοn οr prοcess imprοvement is 0.56.

e. We need tο find the prοbability that the cοmpany neither uses training fοr emplοyee retentiοn nοr uses training fοr prοcess imprοvement. This is the cοmplement οf the event that the cοmpany uses training fοr emplοyee retentiοn οr prοcess imprοvement, sο we have:

P(neither ER nοr PI) = 1 - P(ER οr PI) = 1 - 0.56 = 0.44

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Solve for x and y.this is trig btw

Answers

The value of x and y are 8[tex]\sqrt{2}[/tex], we can solve this question by Pythagoras' Theorem.

What is Pythagoras' Theorem?

Pythagoras' Theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. Mathematically, it can be written as: [tex]$a^2 + b^2 = c^2$[/tex]

where 'a' and 'b' are the lengths of the legs (the sides adjacent to the right angle) and 'c' is the length of the hypotenuse. This theorem is named after the ancient Greek mathematician Pythagoras, who is credited with its discovery and proof. It has a wide range of applications in geometry, trigonometry, and other areas of mathematics and science.

By using Pythagoras' theorem, we get

[tex]sin 45=\frac{x}{16}[/tex]

[tex]\frac{1}{\sqrt{2} }[/tex] =[tex]\frac{x}{16}[/tex]

[tex]x=8\sqrt{2}[/tex]

[tex]cos 45=\frac{x}{16}[/tex]

[tex]\frac{1}{\sqrt{2} }[/tex]=[tex]\frac{y}{16}[/tex]

[tex]y=8\sqrt{2}[/tex]

So, the values of x and y are 8[tex]\sqrt{2}[/tex]

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use each of the three corresponding base and height pairs to find the area of the triangle. Will the area be the same of each calculation? explain

Answers

The area of the triangle depends on the base and height pair used, and different pairs will result in different areas.

What is triangle?

A triangle is a geometric shape that consists of three straight sides and three angles. It is a polygon with three sides. The sides of a triangle are connected by its vertices or corners. The triangle is one of the simplest and most fundamental shapes in geometry, and it has many important properties and applications. Triangles have many practical applications in everyday life and in various fields, such as architecture, engineering, and physics. The study of triangles and their properties is an important part of mathematics and geometry.

Here,

I'll provide a general explanation of how to calculate the area of a triangle using different base and height pairs.

The area of a triangle is calculated using the formula:

Area = (base * height) / 2

So, if you have three different base and height pairs for a triangle, you can calculate the area using each pair and see if the area is the same for each calculation.

For example, let's say we have the following base and height pairs for a triangle:

Pair 1: base = 4, height = 5

Pair 2: base = 6, height = 3

Pair 3: base = 8, height = 2

Using the formula, we can calculate the area of the triangle for each pair:

Area 1 = (4 * 5) / 2 = 10

Area 2 = (6 * 3) / 2 = 9

Area 3 = (8 * 2) / 2 = 8

As you can see, the area is not the same for each calculation. However, the sum of the areas of the triangles formed by each pair of base and height would always be equal to the area of the triangle formed by the overall base and height.

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Aubrey wants to know how students in her school feel about the new intramural sports program being developed. She randomly selects the names of 100 students and e-mails them a survey. She waits for responses and records data from the 32 surveys that are returned to her. Is her sample biased? Explain.​

Answers

Her sample is in fact biased, as the sampling method used was voluntary sampling, which results in self-selection bias.

What is voluntary sampling and why it is biased?

Voluntary sampling is a type of sampling method in which individuals are invited to participate in a study or survey based on their willingness or availability to do so. In other words, individuals choose to participate in the study, rather than being selected randomly by the researcher.

Voluntary sampling is chosen for this problem as the students had the option to answer the e-mail or not.

A limitation of voluntary sampling is that the individuals who choose to participate in the study may not be representative of the larger population from which they were drawn, leading to biased results.

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I really need help, please. I have question one but I can't figure out the rest.


4.3.4 Practice: Solving Systems of Linear Equations by Substitution
Practice
M/J Grade 8 Pre-Algebra Sem 1
Points Possible:10
Name:
Caine Jones
Date:


Your Assignment
Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.
How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?
Answer the questions to solve this problem using a system of equations.
1. Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read. (1 point)



2. Write an equation to represent the number of pages Jesse has read.
Using x, the number of days Amir has been reading, write an expression to represent the number of days Jesse has been reading. Remember that Jesse started reading one day before Amir. Use this expression to write an equation for the number of pages Jesse has read. Let y represent the number of pages read. (1 point)








3. Write the system of equations using your answers from questions 1 and 2.
(2 points)




4. You will use substitution to solve this system. Which variable will you substitute for and why? Show the equation that results from the substitution. (2 points)




5. Solve the system of equations. Show your work. (2 points)




6. Interpret your solution. How many days does it take Amir to catch Jesse? At that time, how many pages have they read? (2 points)

Answers

1. The equation to represent the number of pages Amir has read is y = 35x, where x is the number of days Amir has been reading and y is the number of pages he has read.

2. Let's say that Jesse started reading on Saturday, and Amir started reading on Sunday. If x is the number of days Amir has been reading, then Jesse has been reading for x + 1 days. The equation to represent the number of pages Jesse has read is y = 30(x + 1), where y is the number of pages Jesse has read.

3. The system of equations is:

y = 35x

y = 30(x + 1)

4. We will substitute y in the second equation with y from the first equation. We can do this because both equations represent the number of pages each person has read. So we have:

35x = 30(x + 1)

5. Solving for x:

35x = 30x + 30

5x = 30

x = 6

So it will take Amir 6 days to catch up to Jesse.

To find the number of pages they have read, we can use either of the original equations. If Amir has been reading for 6 days, he has read:

y = 35x = 35(6) = 210 pages

If Jesse has been reading for 7 days (one day more than Amir), he has read:

y = 30(x + 1) = 30(7) = 210 pages

So when Amir catches up to Jesse, they will both have read 210 pages.

6. Amir will catch up to Jesse in 6 days. At that time, they will each have read 210 pages.

Answer: i got number 1 :)

6 days

210 pages

Step-by-step explanation:

As stipulated by the question, let the number of days Amir has been reading be x and the number of pages he had read to be y.

Now since he reads 35 pages per day.

Then mathematically;

y = 35x

For Jesse, He started reading a day before, this means that the number of days he had read would be x + 1. Since he reads 30 per day, the total number of pages he would have read is 30(x+1)

To find the number of days which is x, we have to assume that at a point in time, the number of books they would have read would be the same meaning that

Also; y = 30(x + 1)

Equating the two situations

35x = 30(x + 1)

35x = 30x + 30

35x -30x = 30

5x = 30

x = 30/5

x = 6 days

This means that it will take Amir 6 days to catch Jese.

The number of books they would have read by then is y = 35x = 30(x + 1)

= 35 * 6 or 30(6+1)

= 210

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